According to the imf, the foreign-born labour force in America is 9% higher than at the start of 2019. America’s immigration surge means that its economy will be 2% larger over the next decade than had been forecast. The influx of workers also helps explain the country’s strong economic growth.The rich world is in the midst of an unprecedented migration boom. Last year 3.3m more people moved to America than left, almost four times typical levels in the 2010s. Do you think that colonizers have contributed to this and they need to deal with it ?